A population of values has a normal distribution with μ=115.6\displaystyle \mu={115.6} and σ=48.2\displaystyle \sigma={48.2}. You intend to draw a random sample of size n=235\displaystyle {n}={235}.

  1. Find the probability that a single randomly selected value is greater than 113.7.
    P
    (X > 113.7) = Round to 4 decimal places.

  2. Find the probability that the sample mean is greater than 113.7.
    P
    (X\displaystyle \overline{{X}} > 113.7) = Round to 4 decimal places.

Answers obtained using exact z-scores or z-scores rounded to 2 decimal places are accepted.